PRINCE Harry’s new girlfriend Cressida Bonas will face a test of her nerves when she accompanies him to a family wedding in a fortnight.

For also on the guest list is the great love of Harry’s life, Chelsy Davy.

The wedding in South Africa, between Miss Bonas’s half-sister Isabella Anstruther-Gough-Calthorpe and billionaire Sir Richard Branson’s son Sam, is already a crucial date for Cressida, 24, as it will be the first time she introduces Harry to her parents.

Yet the news that Sam Branson has invited Chelsy to the celebrations may make the occasion a little tense for Cressida, who is in the early stages of her relationship with Harry. The couple were pictured in an embrace on a skiing holiday last week in the Swiss resort of Verbier.

Chelsy could not contemplate a lifetime as part of what she called the “ongoing circus” of marrying into the Royal Family

Although Harry is said to be “entranced” by the leggy dance student, whom he began dating shortly before he was deployed to Afghanistan, friends report that he is still sensitive about the break-up of his seven-year romance with Chelsy.

The blonde daughter of a Zimbabwean landowner, Chelsy was the one who ended the relationship, telling Harry that while she loved him she could not contemplate a lifetime as part of what she called the “ongoing circus” of marrying into the Royal Family.

Since then Chelsy, 27, who like Cressida went to Stowe School and Leeds University, had been dating finance worker Matthew Mills, 29, son of Dame Tessa Jowell and her husband David Mills.

Chelsy ended the relationship last month, however, and has taken a break from her job at a London law firm. After holidaying with a girlfriend in Portugal she is now staying with her family in Cape Town.

She has told Sam Branson that she will be on her own when she attends his wedding next month at Richard Branson’s private game reserve near Kruger National Park.

Harry's former sweetheart Chelsy Davy

Prince Harry, who is on leave for five weeks before he returns to military duties, is due to make an official visit to Lesotho and Johannesburg tomorrow before enjoying some private time in Botswana, where he will join his old friend Mark Dyer.

It was in Botswana that he enjoyed several holidays with Chelsy during their relationship.

The Branson wedding will not be the only time Harry and Chelsy will meet at the altar. They are both to be invited to the summer wedding of two of their best friends, Tom van Straubenzee and Lady Melissa Percy.

Chartered surveyor Tom, who was at Eton with Harry, is to marry tennis coach Melissa at Alnwick Castle, home of her parents, the Duke and Duchess of Northumberland.